224020785 has 16 divisors (see below), whose sum is σ = 358821504. Its totient is φ = 119348352.

The previous prime is 224020751. The next prime is 224020789. The reversal of 224020785 is 587020422.

It is not a de Polignac number, because 224020785 - 2¹¹ = 224018737 is a prime.

It is a super-2 number, since 2×224020785² = 100370624224032450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (224020789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7149 + ... + 22341.

It is an arithmetic number, because the mean of its divisors is an integer number (22426344).

Almost surely, 2^224020785 is an apocalyptic number.

It is an amenable number.

224020785 is a deficient number, since it is larger than the sum of its proper divisors (134800719).

224020785 is a wasteful number, since it uses less digits than its factorization.

224020785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16184.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 224020785 is about 14967.3239091028. The cubic root of 224020785 is about 607.3365781697.

The spelling of 224020785 in words is "two hundred twenty-four million, twenty thousand, seven hundred eighty-five".